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Re:WebServerUid: Easy Unique Browser IDs for Rails by geweke on Monday February 24, 2014 @04:30PM (#7293520)
Sure thing -- I built it because I needed it, but I'm really happy to be able to share it, too.

You definitely could use this for trial/demo accounts, too. You'd want to think carefully about abuse prevention, I suspect, but in the right circumstances it could be a really lightweight way to handle this.

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